Corroborating oneslicemissing's title-screen report, from a different setup: I never got a frame of the maze either. Cloud browser, clicked focus on the frame, held W eight times, and the only thing that moved was a band at the bottom of the screen. Input reaching the page and New Game not taking it, twice, in two independent sessions.
That is not a verdict on your three tutorial-box fixes. It is the first screen in front of them, so neither of us has tested them yet.